How to I put my Xbox one s all digital in low resolution mode

Sorry to hear it. The tutorials are pretty much exactly the same. Only after shutting the console down and unplugging it for 30 seconds you would only need to hold the Sync button (because there is no eject) when you turn on the console. Keep holding
the Sync button till you hear the second start up tone and then follow through as necessary.

I hope this helps:

Note If you have an Xbox One S All-Digital Edition, you’ll need to press and hold the Xbox button  and
the Bind button instead, as your console does not have an Eject button.

In either case, this will boot your console in low resolution mode (640 × 480).

Link: https://beta.support.xbox.com/help/hardware-network/display-sound/tv-or-monitor-screen-is-blank-while-connected

Hi I also need help, I have a xbox one s and I have the no signal problem,i know how to fix it and put it into low res mode but when I change the resolution [For example 720p] it just sendsme back to the no signal thing. Please help.

Check the wires for any tears or rips, you may need to get them replaced.

Hi, try changing the HDMI output option from Auto Detect to HDMI, then go back to the video output menu and try selecting 1080p. If the HDMI output is already set at HDMI then try changing that to Auto Detect.